Meaning, if we have an item that has different parts to be assembled and they are not physically touching or connected by some sort of wire, is this allowed?

Also, if we want to print something that costs .50 cents in material, and we intend to sell it but the price of that small thing would be prohibitive to buyers when a $5.00 handling fee is added - are we allowed to arrange ten of these things in one file and print it, thereby spreading the $5 fee over 10 items?

I remember that once we could not do this... but I'm wondering if things have changed.